Online Parts Store › Flat Washer, 5/16", .062" Thick, OD 7/8" Image 1 of 1 Flat Washer, 5/16", .062" Thick, OD 7/8" $52.44 Hot Dipped Galvanized. Add To Cart Added! Hot Dipped Galvanized. You Might Also Like Phillips Tapping Screw - Pan Head, #14 x 1-1/4" $33.19 Phillips Tapping Screws - Flat Head, #6 x 1-1/2" $16.94 Stainless Countersunk Finishing Washer, #8 $14.36 Flat Washer, 5/16", .062" Thick, OD 9/16" (A/N Style) $10.20 Flat Washer, 7/16", .062" Thick, OD 1-1/8" $27.80